package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Scanner;

public class JDBCDemo7 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("欢迎登录");
        System.out.println("请输入用户名:");
        String username = scanner.nextLine();
        System.out.println("请输入密码:");
        String password = scanner.nextLine();
        try(
                Connection connection = DBUtil.getConnection();
        ) {
            String sql = "SELECT id,username,password,nickname,age "+
                    "FROM user "+
                    "WHERE username=? AND password=?";
        PreparedStatement ps = connection.prepareStatement(sql);
        ps.setString(1,username);
        ps.setString(2,password);
        ResultSet rs = ps.executeQuery();
        if(rs.next()){
            System.out.println("登录成功");
        }else{
            System.out.println("登录失败");
        }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
